Chairs and seats – Movable bottom – Tiltable
Patent
1988-08-26
1990-02-27
Zugel, Francis K.
Chairs and seats
Movable bottom
Tiltable
297322, 297343, A47C 102
Patent
active
049040200
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a chair comprising a seat, a back and a frame, wherein the angular position of the seat with respect to the frame is readjustable from a first position to a more rearwardly inclined second position, and wherein the angular position of the back with respect to the frame is readjustable from a first position to a more rearwardly inclined second position whereby the seat and the back in their said second positions form an angle with each other which is greater than the angle which they form with each other in their first positions, the seat and the back being mutually hinged.
A chair of the kind referred to above is known from DE patent specification published for opposition No. 10 99 705. According to this prior art the seat and the back are mutually hinged by means of hinge connections arranged at the lower edge of the back and behind the rear edge of the seat. By the readjustment from the first to the second position the hinge connections between the back and the seat are moved downwardly along an obliquely downwardly and forwardly inclined guideway and thereby the seat is moved forwardly and the front edge of the seat is pivoted upwardly by means of two oblique guideways. Simultaneously, the lower edge of the back is pivoted forwardly with respect to a pair of slide shoes sliding in generally vertical guideways at the lower edge of the back. The chair known from said publication is a pronounced easy and resting chair, which is readjusted only occasionally.
By udsing a chair during a long time, e.g. in connection with time consuming conferences and diner parties the person using the chair may feel dislike of occupying the same sitting position constantly. However, if the readjustability known from said DE specification No. 10 99 705 is used in connection with a conference chair or dining room chair of the kind where the user may be assumed to shift position comparatively often it has been proven that the readjustability from a less to a greater angle between the back and the seat and back again results in a drawback for the person using the chair, viz. that the clothes of the person is moved with respect to the body, and it is the object of the present invention to avoid this drawback and this object is according to the invention achieved in that the back in its said second position occupies a lower position with respect to the seat than in its said first position. Hereby a compensation, at least partly, is achieved as regard the increased distance between the centre of the seat and the centre of the back, which otherwise would result from the increased angle between the seat and the back in their said second positions because the lowering of the back with respect to the seat will result in that the distance between said centres will not change considerably during the readjustment, and accordingly also the clothes of the person in question will not be moved in an unpleasant way.
Due to the fact that the present invention primarily is directed towards a conference chair or dining room chair an embodiment is according to the present invention preferred whereby the seat in its first position is generally horizontal or inclined slightly backwardly, whereas the back in its first position is generally vertical or inclines slightly rearwardly.
In order to achieve a particularly pleasant position of rest, i.e. the position wherein the back and the seat occupy their said second positions, a preferred embodiment for the present invention is proposed which is characterized in that the angle, through which the back is readjustable, is greater than the angle through which the seat is readjustable.
In order to achieve the lower height of the back with respect to the seat in the second positions of the seat and the back, the hinge connection between the back and the seat may according to an appropriate embodiment of the invention be positioned a distance in front of the rear end of the seat.
In order to achieve a mounting of the back and the seat in the frame of the chair which in a simpl
REFERENCES:
patent: Re29483 (1977-11-01), Re
patent: 677234 (1901-06-01), Kelly
patent: 2953103 (1960-09-01), Bohannon et al.
patent: 3567280 (1971-03-01), Bradshaw
patent: 3572829 (1971-03-01), Malitte
Danaction Consult-Invest A/S
Zugel Francis K.
LandOfFree
Chair comprising a seat, a back and a frame does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chair comprising a seat, a back and a frame, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chair comprising a seat, a back and a frame will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-168640